Performance of Capacitive Touch Screen in Industrial Display Field
Capacitive touch screens are currently the most popular product in the display industry, and have been widely used in electronic products such as smartphones and tablets
Capacitive touch screens are currently the most popular product in the display industry, and have been widely used in electronic products such as smartphones and tablets. You can scroll, zoom, and pinch, which is an unparalleled experience compared to resistive capacitive screens.
In the field of industrial display screens, capacitive touch screens have also experienced great development in recent years. Unlike consumer products, their usage environment is more extensive and harsh. This poses a great challenge to the performance of capacitive screens. The capacitive screen designed and produced by Hangzhou
IDT Technology Micro is mainly based on G+G structure, which is more stable and suitable for matching industrial display screens. So, our cover lenses are usually made of glass. For more knowledge about glass cover plates, you can click here. Next, we will provide a detailed introduction to several key knowledge points of capacitive touch screens in the field of industrial displays.
1.Capacitive touch controller:
What functions are crucial for capacitive touch controllers to achieve on capacitive screens. Usually, the lifecycle of capacitive touch controllers for consumer products is short, they have strong bias, and often optimize costs. With changes in market demand, these capacitive touch controllers may face redesign or discontinuation, and their lifecycle may only be 2-3 years. For industrial display capacitive touch controllers, they are more concerned with powerful performance and extended lifespan. This means that a certain driver IC may not have undergone any changes for up to ten years or even longer. This is what is needed in the field of industrial display screens and what the industry hopes for. Once the development is completed, your product does not require any changes in the future.
2. Communication interface:
In the field of industrial displays, capacitive touch controllers generally communicate through I2C and USB interfaces. We can also provide you with two interfaces on the same product at the same time. Among them, USB may directly adapt to Windows and Linux systems, which will save a lot of development time.
3.Electromagnetic compatibility ESD：
IEC CI/CS test levels (conduction test, standard levels 1-3, 1V, 3V, 10V)
ESD test level (air discharge/contact discharge, KV)
EMI Peak Level, Average Level
4.Gloves and water touch:
The environment in which industrial display screens are located is relatively harsh, and sometimes workers need to wear gloves to operate. Therefore, capacitive screens must support glove mode. There are also many types of gloves, such as medical latex gloves, as well as thicker rubber gloves and cotton gloves. We will debug reliable software according to the usage situation and environment. In the industrial sector. Sometimes there may be water mist, droplets, and other issues on the screen surface, which can be perfectly handled for such applications. We have corresponding touch functions with water.
